The 1940 Cup of BSIHF was the sixth edition of the competition under this name. It was won by Hockey Club Sofia.
It was contested at the Katoka Ice Rink in Ruse.
First round[]
- Sokol Sofia - Shipka Sofia 4:1, 3:5
- Benkovski Sofia - Sportist Sofia 7:3, 2:5
Second round[]
- Benkovski Sofia - Rakovski Sofia 5:2, 5:10
- Sokol Sofia - Botev Sofia 11:5, 2:2
Quarterfinals[]
- Napredak Ruse - Balkan Gabrovo 8:2, 2:3
- Hockey Club Sofia - Savata Sofia 5:5, 7:3
- Atletik Sofia - Sokol Sofia 2:2, 5:4
- Rakovski Sofia - Slavia Sofia 5:3, 2:1
Semifinals[]
- Rakovski Sofia - Napredak Ruse 21:2, 10:9
- Hockey Club Sofia - Atletik Sofia 2:2, 8:2
3rd place[]
- Atletik Sofia - Napredak Ruse 4:3, 2:2
Final[]
- Hockey Club Sofia - Rakovski Sofia 2:0, 4:13, 11:5